llvm-project/clang/test/SemaObjC/warn-unused-exception-param.m

// RUN: %clang_cc1 -fsyntax-only -verify -Wunused-exception-parameter %s
void  f0() {
  @try {} @catch(id a) {} // expected-warning{{unused exception parameter 'a'}}
}
Diagnose unused exception parameters under a different warning group (-Wunused-exception-parameter) than normal variables, since it's more common to name and then ignore an exception parameter. This warning is neither enabled by default nor by -Wall. Fixes <rdar://problem/7931045>. llvm-svn: 102931 2010-05-03 18:51:14 +00:00			`// RUN: %clang_cc1 -fsyntax-only -verify -Wunused-exception-parameter %s`
			`void f0() {`
			`@try {} @catch(id a) {} // expected-warning{{unused exception parameter 'a'}}`
			`}`